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(No Model.) 7 Sheets-Sheet 1- W. L. GREGG. BRICK MACHINE.

No. 385,614 m Patented July 3, 1888.

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W. L. GREGG.

BRICK MACHINE.

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(No Mode L) 7 Sheets-Sheet 3. W. L. GREGG.

. BRICK MAOHINE. N0. 385,614.

Patented JulyB, 1888. 151.

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W. L. GREGG.

BRIG-K MACHINE. No. 885,814. Patented July 3, 1888,

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' BRICK MACHINE.

Patented July 3, 1888.

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No. 385,614. Patented July 3, 1888;

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lwivtmaooao L 7 Sheets-Sheet 7;

(No Model.)

W. L. GREGG.

BRICK MACHINE.

Patented July 3, 1888 WITNESSES UNITED STATES PATENT OFFI \VILL'IAM LAM'PAS GREGG, OF PHILADELPHIA, PENNSYLVANIA.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 385,614, dated July 3, 1888 Application tiled August fl. 1887. Serial No. 246,294. (No modeLl To aZZ whom it may concern:

Beitknowi; thatI, WILLIAM LAMPAS GREGG, acitizen of the United States, residing at Philadelphia,in thecotinty ofPhiladelphia and State of Pennsylvania, have invented certain new and useful Improvements in Brick-Machines; and I do hereby declare the following to be a fulhclear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

'My invention relates to improvements in that class of brick-machines which are providedwith an intermittently rotating moldtable and mold-boxes having followersfor giving the clay successive pressures in the molds,

..-and devices for removing the. bricks when pressed.

The object of my improvements is to vary the character of the successive pressures, thereby producing a complete, homogeneous, and finished brick, and avoiding the necessity of r-e-pressing.

To this end it consists of the means, as hereinafter described-and claimed, for giving to the clay, first, a developing upward pressure ill- Elle molds, whereby the brick is devel-. oped and air and surplus clay removed; then a second simultaneous downward and upward pressure, which gives to'the brick a solid uniform compact quality and shape, and, finally,

fa third upward pressure to further solidify the brrck and give it asmooth hard-finished form and condition.

Themethpd' herein involved is made the subject of my application, No. 370,044.

It also consists of means for cleansing the molds e0 operating with the means for moving and filling them.

My improvement is illustrated in the accompanying drawings, in which= Figure l is a vertical longitudinal section of the machine. Fig. 2 is a vertical cross-section on line a: a: of Fig. 1; Fig. 3, an end view; Fig. 4, a top view of the mold table and boxes, two of the boxes being removed; Fig. 5, a detail, being a vertical section through one of the mold-boxes. Fig. (i is a horizontal section on line :0 w of Fig. 2, also showing some parts above that line; Fig. 7, a detail, being a side View showing the movable portion of the track and its support. Fig. 8 is a detail, being a Fig. 10 is a detail showing the continuous tubes through which the surplus clay is discharged from the molds. Fig. It is a detail, being a side'view of theperiod-gear and lock and latch. Fig. 12 is a detail showing the eccentrio pin used as a fulcrum for the pressurelevers. Fig. 13 isa detail showing one ofthe pressure 'levers on the eccentric pin; Fig. 14,

a detail showing a cam mechanism for ope'rating the upper follower; Fig: 15, a detail of the mold-cleaning mechanism, and Fig. 16 a'detail of theplate F.

In the drawings, A represents the bed-plate. B are three posts rising from the bed-plate.

O is the main truss, one end, of which rests upon one of the'posts B, and is secured by a the periphery, and is provided, as shown, with six mold-boxes, F, each of which, as shown, is double. The table is provided with. openings, over which the mold-boxes are placed, one of which is shown at y. The mold-boxes are secured to the mold-table, as indicated in Fig. 4. As shown, each box is provided with a steel lining, a, and a partition, I). t

c are metal plates which are bolted to the tops of the mold-boxes.

G, Fig. 4, are guides for the follower-stems, which guides are made independent and are secured to the bottoms of the mold-boxesby means of bolts. These guides are provided with recesses (l to permit the insertion from above ofthc rollers at the lower end of the follower-stems.

H H are the followers. As shown, a follower consists of a head, 0, on the stem of which is secured a removable plate, f. The lower end of each follmver-stem H isprovidcd with a roller, 9.

I is a track for the rollers g.

The mold-table is provided with strengthening-ribs hon the under side and with a hub at the center, which rotates upon a pivot, J, supported by three legs, K, the lower ends of which are bolted to the bed-plate.

L is a hood on top of the main truss, held 5 in place by the center bolt, M, the object of the hood being in part to take a portion of the strain from the bolts which connect the branch trusses with the main truss.

I make a portion of the track upon which the rollers 9 travel adjustable vertically for the purpose of regulating the amount of clay to be fed to the molds.

N, Fig. 6, represents the main part of this portion of the track. t is the other part,

part N is, as shown, provgided with three Ill-'- clines,j, which rest, up'ou threc correspond ing inclines, k, in the snppornQ. I On the side N is a" rack, l, with which-ca w-orin-screvr,- m,

engages, which worm can be. operated by a hand-wheel, n. x By rotating this'wo'rm-wheel the movable part N can he -raised and low cred, the inclines j moving up and down on the inclines it. By raising. or lowering this part N the position of the lower followers, H, when at rest in the mold-boxes, can be varied fort-he purpose of regulating theamount of clay to be fed to the mold-boxes. The main part of the hinged piece i is only half the width of the track, and at this point one-halfof the wheels 9 will have a support in whatever position the parti be placed. When'the part N is at its lowest position, this'parti will be horizontal. As the part N is raised the part '5 assumes an inclined position.- with a slot, 0, Fig. 6, into which passes a pin which serves as a guide.

P i's-a hopper pivoted to the machine.

Q, Fig-'6; is a gear-wheel driven bya-pinion. (Not shown.)

It is the main shaft, driven by the wheel Q.

S is a miter-wheel on the shaft R.

I T, Fig. 1, is a vertical shaft, on the lower end of which is a miter-wheel, U, engaging with the miter-wheel S.

1; is a face-plate on the top hub is keyed to the shaft 'T.

d is a mutilated pinion secu red to the hub g. (See Figs. 1 and 9.) a

A, Fig. 9, is a rod connected at one end to the pivoted hopper and at the other end to the coiled spring 6.

f is a lever, one end of which is pivoted to the bar A and the other end engages with the teeth of the mutilated pinion d.

B, Fig. 4, is a'mutilated pinion engaging with the mold-table, and being so arranged that one revolution of the pinion B gives to the mold-table one-sixth of a revolution. I

0' is a cam, which is bolted to this mutilated gear. The plate which carries the cam is provided withslotsy, so that the cam can be ad justcd on B.

D" is a bar forked at its outer'end, and having upon its inner end, as shown, three teeth, 71, which engage of hub qiiiwh which is hinged to N. The under side of this 'tral portion. in order to'admit of the action of y 8 There are three pressure-levers-G, Fig. 2. 5

N is provided" roller d in armse with notches i, of which, as

atl w l)", which latch has a hook, at, at its free end.

n is a rollcrsupportcd on a pin which is bolted to E, the roller being arranged inthe groove oft-he cam 0, Figs. 1 and 4.

' F is a countcr-pressu re plate, against which the brick are pressed from below. This plate extends from a point near the hopper around to the opposite side of the machine as far as required. The'parts of this plate which are between those parts which receive the pressure are cut away somewhat-as shown in the drawings, to savemetal, and also at its centhe intermediate upper pressure followers.

H, Fig. 1, and I, Fig. 2 to operate the lower followers. G' and larc pivoted at their outer ends to the frame, as shown in Fig. 2. .H is pivoted to a hanger, 1-, Figs.' -1.and 6. The lever G is operated by it cam, J, on the shaft R, which cam has pivoted to it two rollers, s',

which are arranged under and oome'in contact with the inner end of the lever G, which is forked, (see Figs. 1 and 6,) raising the same as the shaft It rotates, and thereby raising the pressure block or in a casing or cylinder, t, the casing and pispiston K, which is located tonboth being slotted for the passage of the lever G. This easing t is provided with flanges on'ropposite sides at the bottom and also near the top. 'The bottom' 'flz'tn'ges-are' bolted to the bed-plate and the upper flan es are bolted to the track.

is disconnected from the remaining portion, and is let into the pressure-block K and rises and falls with it, recesses being provided in the top or upper edge of the casing t to receive u. The inner end of the pressure-lever 1 passes into the forked end of the lever G,

and is provided with a roller, o, and this lever is operated by the main body of the cam J, which comes in contact with the roller '0, the other lever, G, statedby the same earn, J, through the rollers 8. (See Figs. 1 and 6.)

w is a casing similar tot. 4 p L is a pressure block or piston similar to K. a is a movablepiece of tracksimilar'to u. "b" is another casing similar to t. y M is a pressure-block, similar to K.

0'3 is a movable piece of track similar to u. The pressure-block M extends down below the'shaft,'and is provided with a large passage, through which the main shaft Rpasses. This pressureblock rests at its lower end on a pivoted to the hangerr, which roller rests on an up ward projection from the lever H. of a crank, f,- secured to the shaft R, and a pitmau, (See Figs. 1 and 6.) The levers G H J are each supported on an eccentric,

That part of the rack letteredu being operated, as before This lever is operated by means h, on a pin, i, and by changing the position of the pin the lever can be slightly raised or lowered, and the pin i can be held in any desired position by a set-screw, j", or other de.. y1ce.

H is an upper follower for giving a downher of teeth, and the bottom followers being driven by shaft B, it follows by this arrange ment that a simultaneous top and bottom presstire is given by the top and bottom followers,

Wis aswab for cleaning and oiling the molds, and is shown in detail in Fig. 15. It -is provided on its upper end with a yoke, W", and at the lower end is divided into followers ex tending into the molds, and carrying at their ends and sides cleaning material, such as sheepskin or sponge,w The swab is driven by a crank, 5, and crank-pin 6, working in the 0 yoke W". The yoke isprovided with a stem,

7, guided by an arched standard, W bolted firmly to the main truss. swab will be pressed into the molds against the head of a follower, so that any particles of 5 clay or dust adhering to the sides of the mold or to the follower-head will be removed thereby and the molds at the same time oiled.

N is a housing which stiflens the frame and incloses the mutilated gear and furnishesproo tection against injury therefrom.

'ing is secured'to the bed-plate and extends upward therefrom. (See Figs. 1 and 6.)

k are tubes secured in the pressureplate F and extending up through the truss D, for- 5 the passage of surplus clayunder the first pressure. This truss is provided with upwardly-extending projections 2, which form a partial box to receive the discharged surplus clay. (See Fig.'10.) The pins which sup- 5c port the rollers at the lower end of the foliowerstems project a little beyond such stems,.aud the ends of these pins, passing under the flanges m on the bars a, Fig. 3, bring the follower-stemsfldown'upon the track after they 5 5 have been raised to give pressure to the brick.

The ends of the bars n are suitablzv securedin place.

In Fig. 7 I have shown weights 0 hung upon When operated,the

This housbriek its final pressure the edges of the brick,

filled mold bo-x will pass under the counterpressure plate F, the surplus clay beingswept off. The machinery is so timed that when the mold-box reaches the point for thefirst press ure .at 0', Fig. 4, the mold-table will stop while pressure is being given. The mold-table will then again move and will be again brought to rest, and this operation will be continuously repeated. The brick receives threepressures- 5 the firstpressure at 0', the double pressure at p, and the third pressure at q. When the machinery is fairly in operation, the pressurelevers at these three points will be operated simultaneously by the rotation of the shaft R. The first pressureat the point 0 is given through the lever G, the operation of which has been before explained; but it may be further stated that by the raising of the lever G and the pressure-block K the follower-stems which rest upon K will be raised with their followers, giving the brick the first pressure, The second bottom pressure at the point p is given through the operation of the lever H, one end of which is raised 'by the rotation of the shaft through the crank f and pitnian g", the raising of which lever also raises the pressureblock M, and with it carries up the followerstems which are supported on M. At the same tim a top pressure is given by the upper plunger, H by the operation of the eccentric R on the upper shaft, R. The thirrlpressure is given by the lever I, which, asbefore stated, is operated by the rotation of the shaft B through the cam J, acting upon. the roller '0 at the inner end of the lever I, the raising of which lever raises the pressure-block L. p

The bar D, with the 'teethh upon the end thereof, serves as a locking device to hold the mold-table at rest while the pressure is being given to the brick. This locking device is operated by the rotation of the mutilated gearwheel B- and the cam C and roller a. The latch j is operated in the same manner and at the same time, being pivoted to B; but the no free end of the latch travels a little faster than T its center, so that the hook in will be brought, into position to engage with one of the moldboxes before the lock has fairly entered the notches i, and this latch will arrest the move- ,ment of the mold-table at the proper point,

even though its momentum should have a I tendency to drive it a little too far.

\ It has been found in some instances, when the brick is pressed by the flat plate of a foliirwer against aflat surface, that the edges of the same will be less compactly pressed than the body of the brick, and thus madeliable'to crumble. To obviate this objection I make the face of the, plate of the follower H convex,

as shown, so that in the step giving the top and bottom pressure, a thin-upward-projecting tin of clay will be formed on the edges of the brick. The result is that on giving the instead of being weak or crumbling, will be made sharp and as hard and solid as the body.

I vice mounted on said top shafting,

5. In a brick-machine, in combination with the rotating table and molds, the top follower, the upper and lower shafts, and the connected gearing, the bottom follower, H, the pressurelever H, crank f, and pitman 9, whereby the simultaneous top and bottom pressure is efi'eoted, substantially as described.

6. Ina brick-machine, in combination with the rotating table and molds, the upper shaft and lower shafts, and the connecting-gearing, the swab secured to said upper shaft, the follower provided with a head, e, and the-supporting track, whereby said swab is pressed down against thehead of said follower, substantially as described.

What I claim is- 1. In a brick-machine, the combination of the series of upward-pressure followers and thcintermediate upward and downward pressure followers, whereby successive upward pressures and an intermediate upward and downward pressure are given to the brick, substantially as described.

2. The combination, in a brick-machine, of an intermittently-revolving mold-table and mold-boxes,the downwardpressu re followers, the bottom prcssure-followers, the connected top-and bottom shafting, and the cleaning de-- whereby clay indifferent sets of mold-boxes are pressed and one set of mold-boxes is cleaned at a si-' multa neous operation, substantially as described.

3. The combination. in a brick-machine, of, the revolving mold-table and mold-boxes, the shafting carrying one set of followers, and the the down ward-pressure follower H, provided with a convex pressure-plate, as shown, and bottom pressure followers provided with pressure-plates having flat upper surfaces,and acounter-pressure plate, whereby in giving the cleaning device W, operated by said shaft and top and bottom pressure a thin upwardly-proprovided with a yoke, W", stem 7, and the ljectin g tin of clay will be formed on the edges crank, crank-pin, and arched standard W, lof the brick, which, upon the final upward substantially as described. lpressure, will be compressed and form the 4. The combination, in a brick-machine, i solid sharp edge of the brick,substantiallyus with an intermittently-revolving mold-table described. and mold-boxes, the lower and upper shafts, In testimony whereof Iaffix my signature in It R, the connecting-gear Q Q, the top plunpresence of two witnesses. ger, H the eccentric and eccen tric-strnp,and \VILLI AM LAMPAS GREGG. the bottom pressure-followers carried by said i fitnesses: mold-table, substantially as and for the pur- I O. F. NORTON, pose described. S. E. M. NORTON.

7. The combination, in a briclcmachine, of 

